.com {
    border-bottom: 1px solid #777;
    padding-bottom: 10px;
}

.com_list {
    width: 145px;
    height: 25px;
    outline: none;
}

.config {
    margin-top: 10px;
    padding: 1pc 0;
    background-color: blue;
    color: white;
    font-size: 24px;
    cursor: pointer;
    width: 100%;
    outline: none;
}

.step {
    padding-left: 20px;
    font-size: 14px;
    color: #555;
}
